Door or shutter.



No. 759,163. PATENTED MAY 3, 1904. J. DIERIGKX.

DOOR 0R SHUTTER.

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PATENTED MAY 3, 1904.

J. DIERIGKX.

DOOR 0R SHUTTER.

APPLICATION FILED JULY 6, 1903.

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K0 MODEL riieawem UNITED STATES Patented May 3, 1904.

JOSEPH DIERICKX, OF UGCLE, NEAR BRUSSELS, BELGIUM.

DOOR OR SHUTTER.

SPECIFICATION forming part of Letters Patent No. 759,163, dated May 3,1904.

Application filed July 6, 1908. Serial No- 164,445. (No model.)

To all whom it may concern:

Be it known that I, JosErH DIERICKX, a subject of the King of Belgium,residing at Uccle, near Brussels, Belgium, have invented certain new anduseful Improvements in Doors or Shutters, of which the following is aspecification. 1

This invention relates to improvements in the known kind. of doors orshutters the panels of which are divided diagonally.

The object of these improvements is more particularly to .allow of theuse of the said doors in places where only a small amount of space isavailable and where it would be impossible to move the two panels inopposite directions on their pivots.

The invention essentially consists in suspending one panel from theother so that they can pivot and slide on one another and be rigidlyunited to one another at a given moment, sothat the opening of the dooris effected by a compound movement consisting first in pivoting thelirst panel about its axis of suspension and then in pivoting the twounited panels about the pivot of oscillation of the second panel. Thecontrol of the rotatable panels can be effected by means of variousdevices. In some cases it is sufficient to provide the suspended panelwith a simple button or handle adapted to be rotated twice through anarc of forty-five degrees for the complete open ing and closing of thedoor. In other cases the panels can be pulled by means of a cordattached to the suspended panel and provided with a balance-weight ornot. The control or operation of the panels can also be efiected bymeans of a system of levers connected to both. The door can be double,if necessary-that is to say, four panels can be used in two pairs. Sincethe latter are identical with each other, it will be suificient todescribe a door comprising one pair of panels.

In the annexed drawings, Figure 1 is a dia gram illustratingthe'principle of my invention. Figs. 2 to 4 show the inside of theimproved door with the panels in their three principal positions.

As shown in Fig. 1, the door comprises two panels 1 and 2, cutdiagonally. The panel 1 is suspended from the panel 2 at the point 3 andadapted to pivot or slide on the latter, which is pivoted at the point4. The panel 1 is provided with a flange 5. To open the door, theaperture of which is indicated by the dotted line 8, it is sufficient toseize the panel 1- by means oi the handle 7 for instance-and rotate itthrough an arc of forty-live degrees about the point of suspension 3, soas to move the panel 1 into the position 1", in which its flange 5 is incontact with the panel 2. The handle 7 being then pushed farther, thepanel 2 is moved by the panel 1 and rotates with the latter about thepivot 4, so that when the two panels reach the position 2" 1 by rotatingthrough the eighth of a circle about the pivot4 the door-aperture 8 iscompletely open. To close the door, the handle 7 is moved in theopposite direction. To facilitate the return movement, the center ofgravity of the united panels in their position 2? 1 is preferably on theclosing side of the vertical above the pivot 4. The two panels are alsoassembled by means of a suitable device which does not become unfasteneduntil the panels again reach the position 1 2, in which the panel 2bears on a stop 6. After this the panel 1 alone swings about the pivot3, and the door is closed again.

In the form of construction shown in Figs. 2 to 4 the control of the twopanels is efi'ected by means of a system of lovers collectively pivotedat 9. This system of levers comprises a bell-crank lever 10 11, pivotedat 9, the longer-arm 10 of which carries the handle 7. To its arm 11, ispivoted a rod 12, connecting it to another bell-crank lever 13 14,pivoted.

to the panel 2 at 15 and connected to the panel 1 by a short rod 16,pivoted to the latter at 17. The panel 2 is adapted to slide in a guide18, and the arm of the lever .10 slides in a guide 19. The panel 2carries at its upper part a detent or catch 20, the arm 21 of whichbears on the guide 18 in the closed position of the panel 2 and isthus'held horizontal. The catch itself is adapted to engage a tooth 22on the lever 13 14, so as to connect the two panels during theirrotation about the point 4. By lifting the handle 7, Fig. 2, the panel 1is moved, by means of the levers, from the position shown in Fig. 2 tothat shown in Fig.

3 by causing it to move about the point of suspension 3. By continuingto rotate the lever 10 to bring it into a vertical position the flange 5of the panel 1 moves the panel 2, so that both panels now rotate about4:. The arm 21 of the catch 20 now clears the guide 18, and the releasedcatch rotates by gravity till it engages over the tooth 22, which isthen exactly below the catch, Figs. 3 and 4. The panels thus connectedare moved into the position shown in Fig. 4, in which the door is open.For closing the door the lever is moved from the vertical to thehorizontal position. The two panels move in the opposite direction andremain united until on the arrival of the panel 2 to its originalposition the finger 21 of the catch 20 abuts against the guide 18, sothat the tooth 22 is disengaged from the catch and the panel 1 rotatesalone into its closing position, which is insured by the engagement ofthe hook-shaped end 23, Fig. l, of the lever 10 into an aperture 24 tointroduce itself into a notch made in the threshold.

What I claim is 1 1. A door or shutter comprising in combination a pairof diagonally-divided panels, one of said panels being pivotallysuspended from the other which is mounted on a fixed pivot, and the twopanels adapted to be rotated together about said fixed pivotsubstantially as described.

2. A door or shutter comprisingin combination a pair ofdiagonally-divided panels, one of said panels being pivotally suspendedfrom the other which is mounted on a fixed pivot, a flange on thesuspended panel adapted to engage said other panel and means for firstrotating the suspended panel about its point of suspension and then thetwo panels together about said fixed pivot substantially as described.

3. A door or shutter comprising in combination a pair ofdiagonally-divided panels, one of said panels being pivotally suspendedfrom the other, which is mounted on a fixed pivot, a flange on thesuspended panel adapted to engage said other panel, means consisting ofa system, of bell-crank levers, and connectingrods pivoted at a fixedpoint for first rotating said suspended panel about its point ofsuspension and then the two panels together about said fixed pivot andmeans for connecting the two panels together during such combinedrotation, substantially as described.

4. A door or shutter comprising in combination a pair ofdiagonally-divided panels, one of said panels being pivotal ly suspendedfrom the other, which is mounted on a fixed pivot, a flange on thesuspended panel adapted to en-' gage said other panel, means consistingof a system of bell-crank levers and connectingrods, pivoted at a fixedpoint for first rotating said suspended panel about its point ofsuspension and then the two panels together about i said fixed pivot,means for connecting the two panels, together during such combinedrotation, consisting of a gravity-catch pivoted to one of the panels andadapted to engage a member fixed to the other panel, and means forholding said catch out of engagement substantially as described.

In witness whereof I have signed this specification in the presence oftwo witnesses.

JOSEPH DIERICKX.

W'itnesses:

A. GRATZ, MAURICE GERBEAULT.

